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Franz Seidl edited comment on DIRMINA-679 at 10/17/09 4:16 PM:
---------------------------------------------------------------
Diff added:
Changes the three "replace()" methods of DefaultIoFilterChain. They use the helper methods
register() and deregister() now and thus call the lifecycle callbacks of IoFilter in the right
moments.
was (Author: frasei):
Changes the three "replace()" methods of DefaultIoFilterChain. They use the helper methods
register() and deregister() now and thus call the lifecycle callbacks of IoFilter in the right
moments.
> NullPointerException in ProtocolCodecFilter.filterWrite
> -------------------------------------------------------
>
> Key: DIRMINA-679
> URL: https://issues.apache.org/jira/browse/DIRMINA-679
> Project: MINA
> Issue Type: Bug
> Affects Versions: 2.0.0-M4
> Reporter: John J. Franey
> Fix For: 2.0.0-RC1
>
> Attachments: FilterReplaceFix.diff
>
>
> Looks like filterWrite obtains a reference from the session's attributes, but the desired
attribute is not there.
> I am running max of 250 datagram sockets under load test for my application. Connections
last about 60 seconds and released. A new connection is made to keep the total number of
active connections up to 250.
> Over a period of two hours running this load test, this exception occured twice.
> org.apache.mina.filter.codec.ProtocolEncoderException: java.lang.NullPointerException
> at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:312)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$7(DefaultIoFilterChain.java:501)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:740)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:418)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
> ....
> Caused by: java.lang.NullPointerException
> at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:297)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:741)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
> ....
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